Same issue here (Chrome and Firefox). I was also wondering if there is also an extension update ?
Settings->Browser->Review Browsers﻿ is empty.
As a side note, I am a developer and Linux server administrator, ask me anything technical to help you find the issue.
Ubuntu 18.10 (Gnome Shell)
Enpass 6.0.0 (214)
Firefox Extension 6.0.0.56b
Chrome Extension 6.0.0.56

I am getting desperated, I contacted the support, I posted in the Linux Beta announcement thread. Nothing, no help ....
I run Ubuntu 17.10 and because of me subscribing to Enpass beta a while ago I received the update and decided to upgrade everything to Enpass 6.
I cannot connect any of my browsers to enpass on the desktop. I sent support request but didn't get an answer. I use Enpass a lot and this issue is slowing me down in my work.
- I tried with the firewall turned off
- Enpass version 6.0.0 (197)
- Chrome extension 6.0.0.56
- Firefox extension 6.0.0.6
netstat -ano | grep 10391
tcp 0 0 0.0.0.0:10391 0.0.0.0:* LISTEN off (0.00/0/0)
tcp 0 0 127.0.0.1:32870 127.0.0.1:10391 ESTABLISHED keepalive (333,36/0/0)
tcp 0 0 127.0.0.1:10391 127.0.0.1:32870 ESTABLISHED off (0.00/0/0)
tcp 0 0 127.0.0.1:32818 127.0.0.1:10391 ESTABLISHED keepalive (333,36/0/0)
tcp 0 0 127.0.0.1:10391 127.0.0.1:32818 ESTABLISHED off (0.00/0/0)
The browser basically tries to connect, open Enpass (which is running all the time with browser sync enabled in its settings) then fails.﻿

I run Ubuntu 17.10 and because of me subscribing to Enpass beta a while ago I received the update and decided to upgrade everything to Enpass 6.
I cannot connect any of my browsers to enpass on the desktop. I sent support request but didn't get an answer. I use Enpass a lot and this issue is slowing me down in my work.
- I tried with the firewall turned off
- Enpass version 6.0.0 (197)
- Chrome extension 6.0.0.56
- Firefox extension 6.0.0.6
netstat -ano | grep 10391
tcp 0 0 0.0.0.0:10391 0.0.0.0:* LISTEN off (0.00/0/0)
tcp 0 0 127.0.0.1:32870 127.0.0.1:10391 ESTABLISHED keepalive (333,36/0/0)
tcp 0 0 127.0.0.1:10391 127.0.0.1:32870 ESTABLISHED off (0.00/0/0)
tcp 0 0 127.0.0.1:32818 127.0.0.1:10391 ESTABLISHED keepalive (333,36/0/0)
tcp 0 0 127.0.0.1:10391 127.0.0.1:32818 ESTABLISHED off (0.00/0/0)
The browser basically tries to connect, open Enpass (which is running all the time with browser sync enabled in its settings) then fails.